The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2007
Filed:
Sep. 17, 2004
Applicants:
Paul S. Prevey, Cincinnati, OH (US);
John T. Cammett, Jacksonville, NC (US);
Inventors:
Paul S. Prevey, Cincinnati, OH (US);
John T. Cammett, Jacksonville, NC (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
B24C 1/10 (2006.01); C21D 7/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The shot peening method and apparatus (FIG.) of the present invention utilizes control of the shot peening coverage to provide higher surface compression and comparable depth of compression to conventional 100% coverage peening but with reduced cold working providing improved thermal stability and reduction in shot peening time and cost. A preferred embodiment of this invention employs x-ray diffraction (FIG.) residual stress and percent cold work determinated by line broadening to establish the optimal degree of coverage for a given material and shot peening intensity.